Few acros

[greg1786]

I posted these a while back when I first got them but were too small for positive ID. I figured now that they had colored up and grown a bit maybe we could try again. I will post the original picture and a current picture, perhaps it will help with the ID to see how it grew. Thanks!!

 

[Frick]

The only one I can see that has grown enough to have identifying features is the second one, and I would guess Acropora austera at this point.
http://coral.aims.gov.au/factsheet.jsp?speciesCode=0010